Jonathan ‘Wolf’ Rentzsch has created a video tutorial on developing Core Data applications in Cocoa and Objective-C.
I’ve been looking for something like this for a long time.
Related Links

Video Tutorial Source Code
Official Apple Developer Connection Video Tutorial Page
Cocoa Dev Centeral: Core Data Tutorial
Cocoa Dev Central: Intro to Cocoa Bindings

All coding for the next Bullfrog release is done. I’ve been testing it on my two PPC machines. My primary development box, a Dual 2.0GHz G5 PowerMac and an 800MHz G4 Titanium PowerBook.
What I need is someone with an Intel Mac to help make sure the Universal Binary build works on their [...]

I found this very well written list of Entrepreneurial Proverbs over on O’Reilly Radar this morning.
There are some terrific tidbits of advice. I’ve read similar lists elsewhere, but this seems like one of the best I’ve seen in a while.
My list of favorites:

Momentum builds on itself
Jump when you are more excited than afraid
Pay attention [...]

Seth Godin, marketer extraordinaire, shares the video of his recent “All Marketers are Liars” presentation at Google.

It works better when my friends use it too.

If you’ve read some of his books, most of this information has already been covered. But, this 45 minutes serves as a really good summary and reminder of the basics [...]